Ekinex 71 Series, EK-E72-TP Applications Manual

Application manual

KNX Room Temperature controller

71 series EK-E72-TP

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

Index

Foreword ............................................................................................................................................................. 6

1 General information ....................................................................................................................................... 6

1.1 Function ................................................................................................................................................. 6

1.2 Main functional features ......................................................................................................................... 6

1.3 Technical data ........................................................................................................................................ 7

1.4 Design .................................................................................................................................................... 7

1.5 Delivery .................................................................................................................................................. 8

1.6 Accessories ............................................................................................................................................ 8

1.7 Marks and certification ........................................................................................................................... 8

2 Installation ...................................................................................................................................................... 9

2.1 Connection ........................................................................................................................................... 10

3 Configuration and commissioning ............................................................................................................... 11

3.1 Configuration ........................................................................................................................................ 11

3.1.1 Tree structure of the application program .................................................................................... 12

3.1.2 Languages of the application program ......................................................................................... 12

3.2 Commissioning .................................................................................................................................... 13

3.2.1 Displaying physical address and firmware release ...................................................................... 13

4 User interface .............................................................................................................................................. 15

4.1 LCD display .......................................................................................................................................... 15

4.1.1 Information displaying .................................................................................................................. 15

4.1.2 Segment test ................................................................................................................................ 17

4.1.3 Backlight ....................................................................................................................................... 17

5 Temperature sensor ..................................................................................................................................... 18

6 Input variables ............................................................................................................................................. 19

7 Application program for ETS ....................................................................................................................... 20

7.1 About EK-E72-TP ................................................................................................................................ 21

7.2 General ................................................................................................................................................ 21

7.2.1 Parameter table ............................................................................................................................ 21

7.2.2 Operating mode management ..................................................................................................... 23

7.3 Internal sensors ................................................................................................................................... 24

7.3.1 Parameter and communication objects tables ............................................................................. 24

7.4 External sensors (from bus) ................................................................................................................. 26

7.4.1 Parameter and communication object tables ............................................................................... 26

7.5 Weighted temperature value ................................................................................................................ 30

7.5.1 Parameter and communication object tables ............................................................................... 30

7.6 LCD display .......................................................................................................................................... 31

7.6.1 Parameters ................................................................................................................................... 31

7.7 Leds intensity ....................................................................................................................................... 33

7.7.1 Parameter and communication object tables ............................................................................... 33

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

7.8 Temperature control ............................................................................................................................. 34

7.8.1 Settings ........................................................................................................................................ 34

7.8.1.1 Parameter and communication object tables ............................................................ 34

7.8.1.2 Heating/cooling switchover ....................................................................................... 37

7.8.1.3 Valve protection function ........................................................................................... 38

7.8.1.4 Remote Setpoint modification ................................................................................... 38

7.8.1.5 Remote operative mode modification ....................................................................... 39

7.8.2 Heating ......................................................................................................................................... 40

7.8.2.1 Parameter and communication object tables ............................................................ 40

7.8.3 Cooling ......................................................................................................................................... 45

7.8.3.1 Parameter and communication object tables ............................................................ 45

7.8.4 Main and auxiliary ventilation ....................................................................................................... 50

7.8.4.1 Parameter and communication object tables ............................................................ 50

7.8.4.2 Delayed fan start (“hot-start”) .................................................................................... 53

7.8.4.3 Antistratification function ........................................................................................... 53

7.8.4.4 2-stage configuration with fan-coils as auxiliary stage .............................................. 53

7.8.4.5 Remote fan speed modification................................................................................. 54

7.8.5 Scenes ......................................................................................................................................... 56

7.8.5.1 Parameter and communication object tables ............................................................ 56

7.9 Relative humidity control ...................................................................................................................... 58

7.9.1 Dehumidification ........................................................................................................................... 58

7.9.1.1 Parameter and communication object tables ............................................................ 58

7.9.2 Humidification ............................................................................................................................... 61

7.9.2.1 Parameter and communication object tables ............................................................ 61

7.10 Comfort ................................................................................................................................................ 62

7.10.1 Comfort area ................................................................................................................................ 62

7.10.1.1 Parameter and communication object tables ............................................................ 62

7.10.2 Calculated psychrometric values ................................................................................................. 63

7.10.2.1 Parameter and communication object tables ............................................................ 63

7.11 Energy saving ...................................................................................................................................... 65

7.11.1 Window contacts .......................................................................................................................... 65

7.11.1.1 Parameter and communication object tables ............................................................ 65

7.11.2 Presence sensors ........................................................................................................................ 66

7.11.2.1 Parameter and communication object tables ............................................................ 66

7.11.3 Card holder ................................................................................................................................... 67

7.11.3.1 Parameter and communication object tables ............................................................ 67

7.12 Logic functions ..................................................................................................................................... 69

7.12.1 Parameter and communication object tables ............................................................................... 69

8 List of communication objects ..................................................................................................................... 71

9 Control algorithms ....................................................................................................................................... 74

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

9.1 Two-point control with hysteresis ......................................................................................................... 74

9.2 Continuous Proportional-Integral control ............................................................................................. 76

9.3 PWM Proportional-Integral controll ...................................................................................................... 77

9.4 Fan-coils with On / Off fan speed control ............................................................................................. 79

9.5 Fan coil with fan speed continuous control .......................................................................................... 81

9.6 2-point control with hysteresis for auxiliary heating / cooling system .................................................. 83

9.7 Auxiliaty stage with fan coil .................................................................................................................. 84

10 Diagnostics .................................................................................................................................................. 85

11 Warnings ...................................................................................................................................................... 86

12 Other information ......................................................................................................................................... 86

Application manual

Revision

Updating

Date

3.00

ETS application version: VER 3.00. Modified features:  Communication objects added:

74 Building protection HVAC mode active 75 Fan manual speed percentage 76 Fan manual speed off status

20/03/2017

2.00

ETS application version: VER 2.00. Modified features:

 Heating/cooling status out and Heating/cooling status in communication objects (more enhanced

management)

20/06/2016

1.00

Emission

10/03/2016

KNX Room Temperature controller 71 series EK-E72-TP

The latest revision of the application manual is available at www.ekinex.com. For previous revisions, contact the technical support at support@ekinex.com.

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

Foreword

The present document describes the ekinex® KNX room temperature controller with LCD display 71 series version EK-E72-TP.

1 General information

The device described in the present document works as an electronic digital temperature controller for a room or a zone (consisting e.g. in a group of rooms or a whole floor) of a building and is part of the secundary regulation for heating and cooling. The room temperature controller was developed according to the KNX standard for use in systems of control of homes and buildings.

Through the integrated sensor, the device can measure directly the room temperature value that can be used for control and regulation tasks of heating, cooling and ventilation. Via the bus the device can furthermore receive temperature values from other bus devices. The integrated display visualizes a series of information concerning the room controller function. The device is provided with two rockers that can be used for controlling the thermostat function. The device, if configured to receive a room relative humidity value by the bus, can also report if the room or the zone are in a configurable thermal comfort range, depending on the building intended use, activity and other specific factors.

1.1 Function

The main function of the device is to control the temperature of the air mass of the room by means of the actual temperature (T temperature (T

) set by the user; comparing the two values and a series of parameters set before the

set

), measured by the device itself or received by the bus, and of the setpoint

eff

commissioning, the regulation algorithm of the device calculates the control variable value that is converted to a telegram and transmitted on the bus toward KNX actuators (such as binary outputs, fan-coli controllers, valve drives, etc.) able to control the operation of heating and cooling terminal units.

1.2 Main functional features

The main functions carried out by the device are:

• temperature measuring with possibility of sending the values on the bus;

• 2-points (on/off) or proportional (PWM or continuous) room temperature regulation;

• ventilation control with continuous or 3-speed regulation;

• relative humidity regulation by humidification or dehumidification if a relative humidity value is

acquired by a KNX probe;

• seasonal modes: heating and cooling with local or via bus switch-over;

• operating modes: comfort, standby, economy and building protection with separate setpoint values

for heating and cooling;

• manual or automatic control of a fan-coil unit with 2-pipes or 4-pipes connection;

• automatic switching of the operating mode when presence/absence of people or window opening is

detected;

• weighted average of two temperature values;

• temperature displaying (measured, setpoint and outdoor values in °C or °F), alarms and errors (with

alphanumeric codification);

• signaling opening windows;

• limitation of the surface temperature for floor heating radiant panels;

Application manual

Feature

Valore

Device

KNX S-mode bus device

Communication

according KNX TP1 standard

Use

dry internal rooms

Environmental conditions

• Operating temperature: - 5 ... + 45°C

• Storage temperature: - 25 ... + 55°C

• Transport temperature: - 25 ... + 70°C

• Relative hunidity: 95% not condensating

Power supply

SELV 30 Vdc from bus KNX (auxiliary power supply not necessary)

Current consumption from bus

< 13 mA

Switching elements

4 frontal capacitive touch buttons. Direct access to 4 independent functions trough short press (< 5 s). Indirect access to other functions by long press (> 5 s).

Programming elements

1 pushbutton and 1 LED (red) on the front side

Display elements

1 backlighted LCD display

Temperature sensor

1 integrated NTC-type

Installation

On round or square wall-mounting box with distance between fixing holes of 60 mm

Connection

• bus: black/red KNX terminal block

Protection degree

IP20

Dimensions (WxHxD)

81 x 77 x 24 mm

KNX Room Temperature controller 71 series EK-E72-TP

• anticondensation protection for floor and ceiling cooling radiant panels;

• antistratification function;

• delayed fan start (“hot-start” function) time-scheduled or depending on the conveying fluid

temperature measured at the coil battery;

• Comfort area (configurable) internal or external condition sending on the bus;

1.3 Technical data

1.4 Design

The device is realised for wall-mounting on round or square wall box with distance between fixing holes of 60 mm. The programming pushbutton and the programming led are on the front side under the transparent display protection screen. On the rear side of the housing there is the terminal block for the connection of the bus.

Application manual

Code

Mounting

plate

Adapter

Frame

EK-E72-TP

With frame Form or Flank series

EK-PQS-…, 1 place, 60x60

EK-P2G-…, 2 places, 55x55,

60x60

EK-P2S-…, 2 places, 60x60

Flank or Form,

1-2 places

EK-E72-TP-NF

Without frame (‘NF series),

with black side profile

EK-TAQ-…, 1 place

EK-A71-…, 2 places

EK-E72-TP-NFW

Without rame (‘NF series),

with white side profile

KNX Room Temperature controller 71 series EK-E72-TP

Device execution: frontal and lateral view

1.5 Delivery

The delivery includes the metallic support for mounting on the round 60 mm wall box, the screws (2 pairs), a plastic adapter and the terminal block for the connection of the bus. The plate and the frame (if present) must

be ordered separately. For further information please refer to ekinex® product catalog or visit

www.ekinex.com.

1.6 Accessories

The device is completed with a 1 or 2 place plate, in combination with another series 71 device or a civilian 55x55 mm series component, that have to be ordered separately. An ekinex® Form o Flank frame is also required (except for ‘NF - No Frame version).

Accessories of the device: set of rockers and frames

1.7 Marks and certification

The KNX mark on the ekinex device ensures interoperability with the KNX devices of SBS and other manufacturers installed on the same system bus system. The compliance with the applicable European directives is indicated by the presence of the CE mark.

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

2 Installation

The device has degree of protection IP20, and is therefore suitable for use in dry interior rooms. The installation of the device requires the following steps:

a) fix the metallic support with the screws supplied on a wall box with suitable fixing holes. It is

recommended to install the device at a height of 150 cm; b) snap a square frame of the form or flank series, inserting it from the rear of the device; c) insert the terminal for the bus, previously connected to the bus cable, in its slot on the rear side.

Connect the sensors (if foreseen) to the device inputs. At this point it is recommended to carry out

the commissioning of the device or at least the download of the physical address; d) install the device on the metallic support through the spring system, tightening then the two screws

requires also to tighten the screws included in the delivery. For mounting the device follow also the

indication TOP (arrow tip pointing up) on the rear side of the device;.

The device can only be mounted on a round or square wall flush mounting box with 60 mm distance between fixing holes. If necessary, the metallic support for mounting on the wall box can also be ordered separately.

Application manual

Bus KNX

KNX Room Temperature controller 71 series EK-E72-TP

2.1 Connection

For the operation the device has to be connected to the bus line and addressed, configured and commissioned with ETS (Engineering Tool Software).

Connection of the bus line The connection of the KNX bus line is made with the terminal block (red/black) included in delivery and

inserted into the slot of the housing.

Characteristics of the KNX terminal block

• spring clamping of conductors

• 4 seats for conductors for each polarity

• terminal suitable for KNX bus cable with single-wire conductors and diameter between 0.6 and 0.8

• recommended wire stripping approx. 5 mm

• color codification: red = + (positive) bus conductor, black = - (negative) bus conductor

Connection of the device of the bus line

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

3 Configuration and commissioning

The configuration and commissioning are carried out with the ETS (Engineering Tool Software) tool and the ekinex® application program provided free of charge by SBS; you do not need any additional software or plug-in tool. For further information on ETS see also www.knx.org.

3.1 Configuration

The device functionality is defined by the settings done via software. The configuration requires necessarily ETS4 (or later releases) and the ekinex® APEKE72TP##.knxprod (## = release) application program that can be downloaded from the website www.ekinex.com. The application program allows the configuration of all working parameters for the device. The device-specific application program has to be loaded into ETS or, as alternative, the whole ekinex® product database can be loaded; at this point, all the instances of the selected device type can be added to the project. The configurable parameter details are described in this application manual.

Application program for ETS APEKE72TP##.knxprod (## = version)

Application manual

About EK-E72-TP

General

Temperature sensor

External sensors (from bus)

LCD Display

LED

Settings

Heating

Temperature control

Relative humidity control

Comfort area

Calculated psychrometric values

Comfort

Windows contacts

Presence sensors

Card holder

Energy saving

Logic functions

KNX Room Temperature controller 71 series EK-E72-TP

3.1.1 Tree structure of the application program

At its opening, the tree structure of the program includes the following main items:

Other items may appear depending on the choices done for the parameters of the folders.

3.1.2 Languages of the application program

The application program is available in four languages: English, Italian, German and French. The language displayed can be changed in ETS choosing "Settings / Presentation language".

Application manual

Important! During commissioning, the device performs a starting phase consisting in a selfcalibration of the capacitive keys. It is recommended to connect the bus terminal avoiding to manipulate the thermostat in the front or otherwise interfering with the keys: this can lead to unexpected reactions to key pressing during normal operation of the device.

For commissioning the device the following activities are required:

• make the electrical connections;

• turn on the bus power supply;

• switch the device operation to the programming mode by pressing the

programming pushbutton located on the front side of the housing. In this mode of operation, the programming LED is turned on;

• download into the device the physical address and the configuration with the ETS® program.

When downloading the application program the display shows "PrOg" and the flashing symbol of the clock. At the end of the download the operation of the device automatically returns to normal mode; in this mode the programming LED is turned off. Now the bus device is programmed and ready for use.

KNX Room Temperature controller 71 series EK-E72-TP

3.2 Commissioning

For the commissioning the device is provided on the front side (in the area usually occupied by the rockers) of:

• a red LED (1) for indication of the active operating mode (LED on = programming, LED off = normal operation);

• a pushbutton (2) for switching between the normal and programming operating mode.

Device programming: led (1) and pushbutton (2)

3.2.1 Displaying physical address and firmware release

Once the first addressing is done, you can check anytime the physical address and the firmware release directly on the device display. In order to display it, press for more than 3 seconds the – (minus) symbol on the lower-left touch button and the  (circle) symbol on the upper-right touch button. All segments of the display are turned off; displaying a physical address only the 3 large digits and the small one are active. The information displayed in sequence are: the area number (A), the line number (L), the device number (d) and

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

the firmware release (F). To scroll through the three elements of the physical address press + or –. For example:

Example of displaying the physical address 10.5.43 (device nr. 43, installed on the line 5 of the area 10) and the firmware release 001

To exit from the physical address displaying press shortly (< 3 seconds) the  symbol on the lower right side.

If you elapse of time interval set in parameter “Time to exit change without saving” without pressing any

rocker, the device returns automatically to the previously displayed information.

Application manual

2 1 2

KNX Room Temperature controller 71 series EK-E72-TP

4 User interface

The user interface of the room temperature controller includes a LCD display and 4 capacitive touch pushbuttons located near the angles of the plastic case.

User interface: LCD display (1), toch buttons (2)

The symbols on the rockers recall the function carried out: + temperature or fan speed increase; ‒ temperature or fan speed decrease;  information sequence, operating mode change, ventilation control, seasonal change-over. Through a combined pressure of various symbols other functions can be carried out.

4.1 LCD display

The device is provided with a LCD display (1) with adjustable backlight that occupies a vertical area of approx. 28 x 48 mm (WxH) in the central area of the device. Thanks to the integrated brightness sensor, you can set the automatic adjustment of the backlight intensity according to the room brightness conditions.

4.1.1 Information displaying

Depending on the configuration done with ETS, the connections and the availability of information (local or received from the bus), the series of symbols allow to display:

 room actual temperature (it may be the temperature calculated using a weighted average of two

values);

 outdoor temperature, preceded by a ‒ (minus) sign in case of outdoor temperature below 0°C;  room relative humidity value (%, without decimals);  preceived temperature (calculated using actual temperature and relative humidity);  temperature setpoint (for the actual operating mode);  alarm and error condition (A01, A02… E01, E02…);  window opening;

Application manual

Display symbols

Digits (for numeric values display)

Heating mode active (device not calling or setpoint reached)

Celsius degrees

Heating mode active (device calling or setpoint not reached)

Fahrenheit degrees

Manual operation (M)

Percentage (relative humidity)

Cooling mode active (device not calling or setpoint reached)

Indoor temperature

Cooling mode active (device calling or setpoint not reached)

Outdoor temperature

Slave (operation subordinated to a supervising KNX device)

SET OFF (fan-coil switched off)

Alarm

Automatic fan-coil operation (example: speed 3)

Building protection operating mode (off)

Manual fan-coil operation (example: speed 2)

Economy operating mode (night)

Standby operating mode

Comfort operating mode

KNX Room Temperature controller 71 series EK-E72-TP

 operating mode (comfort / standby / economy / building protection);  seasonal mode (heating / cooling);  device status calling / not calling (or setpoint reached / not reached);  operation in manual mode (M);  operation as slave device (clock);  fan status (1-2-3-automatic-off), when present;  device physical address assigned by ETS.

Symbols that can be activated on the LCD display

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

4.1.2 Segment test

The segment test allows you to check at any time the proper functionality of the display. In order to do the test, press simultaneously + (plus) on the upper-right side and the symbol  on the lower-left side for more than 3 seconds. All symbols are activated simultaneously; then all the symbols are turned off. In the test phase keep available the instructions or the user guide.

If you elapse the time set in the parameter "Time to exit change without saving" (General folder) without pressing a button, the device will return to the previous situation.

4.1.3 Backlight

The backlight intensity of the LCD display is adjustable. The first setting is done when configuring the device using ETS, but the intensity can be changed later at any time.

To access the change press simultaneously + (plus) and  on theupper-righ side for more than 3 seconds. All symbols are turned off except the digits and the percentage symbol. The actual value (as a percentage) of backlight intensity is displayed. At each pressing of + or – the intensity is increased or decreased by 5%. To confirm the selected intensity press shortly (< 3 seconds) the  symbol either on the upper-right side. Three rapid flashes of the digits indicate that the new value was saved. If you elapse of time interval set in the "Time to exit change without saving " (General folder) without pressing any rocker, the device returns to the previous situation.

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

5 Temperature sensor

The integrated temperature sensor allows the measureming of the room temperature in the range from 0 °C to +40 °C with a resolution of 0.1 °C. To keep into account significant environmental interferences such as the proximity to heatsources, the installation on an outer wall, the chimney effect due to rising warm air through the corrugated tube connected to the wall-mounting box, the measured value can be corrected by means of a offset of ± 5 K or, preferably, can be used a weighted average between two values of temperature chosen from the following ones: value measured by the integrated sensor, value measured by a temperature sensor connected to one of the inputs of the device, value received via bus from another KNX device (such as ekinex pushbuttons).

The temperature sensor (not to be seen in the drawing) is located under the plastic half-shell.

Positioning of the sensors: temperature (1)

Application manual

Data

Coming from

Description

Room temperature

Internal sensor

Analogic value for thermoregulation functions

Room brightness

Object 4 (from bus)

Room temperature

KNX bus (through

communication

objects)

Object 5 (2 bytes)

Room relative humidity

Objects 7 (1 byte or 2 bytes)

Antistratification temperature

Object 8 (2 bytes)

Outdoor temperature

Object 9 (2 bytes)

Exchange coil temperature

Object 10 (2 bytes)

Floor surface temperature

Object 11 (2 bytes)

Conveying fluid flow temperature

Object 12 (2 bytes)

Presence of condensation

Object 18 (1 bit)

Window state (open/close)

Objects 13 e 14 (1 bit)

Presence of people in the room

Objects 15 e 16 (1 bit)

Card holder state (badge in/out)

Object 17 (1 bit)

KNX Room Temperature controller 71 series EK-E72-TP

6 Input variables

The data that the device usesin its control algorithms and /or to be displayed may come from:

• the internal sensors;

• the KNX bus through standard Communication Objects.

The processed data can also be transmitted on the KNX bus as Communication Objects.The classification of the input variables is shown in the following table.

Input variables from internal sensors, physical inputs and standard communication objects.

The device does not have outputs for direct switching or control of heating / cooling terminals or for status or values signalling. The output variables include exclusively communication objects that are sent on the bus, received and processed by KNX actuators (general-purpose or dedicated to HVAC applications).

Application manual

About EK-E72-TP

General

Temperature sensor

External sensors (from bus)

LCD Display

LED

Settings

Heating

Temperature control

Relative humidity control

Comfort area

Calculated psychrometric values

Comfort

Windows contacts

Presence sensors

Card holder

Energy saving

Logic functions

KNX Room Temperature controller 71 series EK-E72-TP

7 Application program for ETS

In the following chapters there is the list of folder, parameters and communication objects of the application program. Some specific functions of the thermostat are described in more detail in the dedicated paragraphs. The tree structure of the application program as imported into ETS (or by pressing the "Default Parameters" button of ETS) is the following:

Other folders may appear depending on the choices done for the parameters of the folders represented in the main tree structure.

Application manual

Parameter name

Conditions

Values

Device operation as

stand-alone

stand-alone/chrono

slave

If configured as slave, the room temperature controller receives from a KNX device (acting as supervisor) HVAC modes, setpoint values, etc.

Temperature displayed unit

Celsius

Fahrenheit

Default displayed information

actual temperature

temperature setpoint

The actual temperature is the value by which the device performs the temperature regulation. It may be the value measured from a single sensor (internal, from the bus or from an input) or the weighted average of the temperatures measured by a main sensor and an additional sensor. The displayed setpoint temperature is that of the operating mode currently set on the room temperature controller (deduced from the symbol on).

Time to return to default display

5 s

[other values in the range 10 s

… 1 min]

Time interval after which the display automatically switches between the manually recalled information to the default information.

Button function level

end user

system integrator

This parameter allows you to partially disable the functions that can be

KNX Room Temperature controller 71 series EK-E72-TP

7.1 About EK-E72-TP

The folder About EK-E72-TP is for information purposes only and does not contain parameters to be set.

The information given is:

SBS S.p.A. Via Circonvallazione s/n I-28010 Miasino (NO) Italy www.ekinex.com

info@ekinex.com

7.2 General

The General folder includes the following parameters:

 Device operation as  Temperature displayed unit  Default displayed information  Time to return to default display information  Button function level  Time to exit change without saving  Delay after bus voltage recovery

The folder has no secondary folders.

7.2.1 Parameter table

Application manual

Parameter name

Conditions

Values

recalled using the rockers.

Time to exit change without saving

8 s

[other values in the range 2 s

… 12 s]

Time interval without further pressing of the rockers at the end of which the device exits the procedure without saving the current changes.

Delay after bus voltage recovery

00:00:04.000 hh:mm:ss:fff

[range 00:00:04.000 …

00:10:55.350]

Time interval after which the transmission of the telegrams on the bus starts after the power supply is restored. The delay affects both the event-driven transmission and the cyclic transmission of a telegram. Regarding the latter, the counting of the pause interval for retransmission starts at the end of the time of initial delay. The field has format hh:mm:ss:fff (hours : minutes : seconds .milliseconds): the default value 00:00:04.000 corresponds to 4 seconds.

Object name

Conditions

Dim.

Flags

DPT

Comm.

Obj. No.

Rockers lock

1 Bit

C-W---

[1.002] boolean

Thermal generator lock

1 Bit

C-W---

[1.005] alarm

Alarm 1 (from bus)

1 Bit

C-W---

[1.005] alarm

Alarm 2 (from bus)

1 Bit

C-W---

[1.005] alarm

Alarm 3 (from bus)

1 Bit

C-W---

[1.005] alarm

Alarm 4 (from bus)

1 Bit

C-W---

[1.005] alarm

KNX Room Temperature controller 71 series EK-E72-TP

Information displayed as default

One information between the actual temperature and the temperature setpoint is displayed preferably by the digits of the display. The device allows you to retrieve and display a series of other information pressing the

●●●● symbol on the upper rocker; after the time set in the parameter "Time to return to default information"

without further pressure of ●●●●, the display automatically returns to the default information.

Functional level of the touch buttons

The use of the touch buttons for controlling the room temperature controller can be partially inhibited in the configuration phase through a filter for the access to the several functions. When using the touch buttons a distinction is made between:

 first level functions (= short or long pressing of the touch buttons) for the end user;  second level functions (= combination of touch buttons); to the first level are added a few functions

for a system integrator or an installer.

The enabled functional level is set through a special parameter.

Application manual

KNX Room Temperature controller 71 series EK-E72-TP

7.2.2 Operating mode management

In EK-E72-TP room thermostat, operating modes and corresponding comfort attenuations can be customized according to the intended use of the building where the device is installed. 3 different operating modes are available; the user can select them through the Device operation as parameter:

 stand-alone: the user can manually select the operating mode (comfort, standby, economy and bilding

protection) but cannot activate or deactivate from LCD display the automatic chrono program set by the system supevisor (e.g. a Touch&See unit).

 stand-alone/chrono: the user can manually select the operating mode and can ativate or deactivate the

chrono program from LCD display. This setting is suitable for residential environments.

 slave: the room thermostat works permanently under chrono program. The end user can manually recall

the comfort operating mode for a configurable limited time (Temperature control  Settings  Duration of comfort extension); when that time is up, the forced chrono program operating mode returns active. This setting is suitable for business environments.

Application manual

Parameter name

Conditions

Values

Temperature sensor

enabled

disabled

The temperature sensor is enabled as default.

Filter type

Temperature sensor = enabled

low

medium

high

Low = average value every 4 measurements Medium = average value every 16 measurements High = average value every 64 measurements

Temperature offset

Temperature sensor = enabled

0°C

[range -5°C … +5°C]

Minimum change of value to send [K]

Temperature sensor = enabled

0,5

[range 0 …5]

If the parameter is set to 0 (zero),no value is sent after a change.

Cyclic sending interval

Temperature sensor = enabled

no sending

[other values in the range 30 s … 120 min]

Threshold 1

Temperature sensor = enabled

not active

below above

Value [°C]

Temperature sensor = enabled,

Threshold 1 = below or above

[range 0 … 50]

Threshold 2

Temperature sensor = enabled

not active

below above

Value [°C]

Temperature sensor = enabled,

Threshold 2 = below or above

[range 0 … 50]

Hysteresis

Temperature sensor = enabled, Threshold 1 and/or Threshold 2

= below or above

0,4 K

[other values between 0,2 K and 3 K]

Cyclic sending interval

Temperature sensor = enabled, Threshold 1 and/or Threshold 2

= below or above

no sending

[other values in the range 30 s … 120 min]

KNX Room Temperature controller 71 series EK-E72-TP

7.3 Temperature sensor

The Temperature sensor folder includes the following parameters:

 Sensor enabling  Filter type  Temperature offset  Minimum change of value to send [K]  Cyclic sending interval  Threshold 1  Threshold 2

7.3.1 Parameter and communication objects tables

Application manual

Object name

Conditions

Dim.

Flags

DPT

Comm.

Obj. No.

Temperature value

Temperature sensor = enabled

2 Bytes

CR-T--

[9.001]

temperature (°C)

Temperature threshold1 - Switch

Temperature sensor = enabled,

Threshold 1 = below or above

1 Bit

CR-T--

[1.001] switch

Temperature threshold 2- Switch

Temperature sensor = enabled,

Threshold 2 = below or above

1 Bit

CR-T--

[1.001] switch

KNX Room Temperature controller 71 series EK-E72-TP

Acquisition filter

The acquisition filter calculates an average with a series of measured values before sending on the bus. The parameter can have the following values:

 low = average value every 4 measurements;  medium = average value every 16 measurements;  high = average value every 64 measurements.

Correction of the measured temperature

The sampling of the temperature value occurs every 10 seconds, while the display is updated every minute. During the configuration with ETS the opportunity is given to correct the measured temperature value within the offset range of - 5 °C ... + 5 °C (step: 0.1 K).

Application manual

Parameter name

Conditions

Values

Room temperature

disabled / enabled

It enables a bus temperature sensor. The measured value can be used to calculate a weighted average value in combination with the temperature sensor integrated into the device or a temperature sensor connected to a device input.

Cyclic reading interval

Room temperature = enabled

no reading

[other values in the range 30 s … 120

min]

If the parameter is set to “no reading”, the corresponding communication

object must be updated by the remote device sending data. With any different value, data are updated with a reading request by the room thermostat.

Relative humidity

disabled / enabled

Humidity CO dimension

Relative humidity = enabled

1 byte (DPT 5.001)

2 byte (DPT 9.007)

Cyclic reading interval

Relative humidity = enabled

no reading

[other values in the range 30 s … 120

min]

Antistratification temperature

disabled / enabled

It enables a temperature bus sensor to carry out the antistratification function.

Cyclic reading interval

Antistratification temperature =

enabled

no reading

[other values in the range 30 s … 120

min]

KNX Room Temperature controller 71 series EK-E72-TP

7.4 External sensors (from bus)

As “external sensors” are intended KNX-devices (or conventional sensors interfaced to the bus through KNX devices) which send states or values to the room temperature controller via the bus. Enabling an external sensor, without connecting the corresponding communication object, generates a permanent alarm on the display and suspends the thermoregulation function.

The folder External sensors (from bus) includes the following parameters:

 Room brightness  Room temperature  Relative humidity  Antistratification temperature  Outdoor temperature  Floor surface temperature  Flow temperature  Anticondensation  Window contact X (X = 1, 2)  Presence sensor X (X = 1, 2)  Card holder contact  Sensor timeout

7.4.1 Parameter and communication object tables

+ 60 hidden pages

Ekinex 71 Series, EK-E72-TP Applications Manual

Specifications and Main Features

Frequently Asked Questions

User Manual